/*
2021-8-11
https://www.acwing.com/problem/content/3803/
*/ 
#include<cstring>
#include<iostream>
#include<algorithm>

using namespace std;

int main()
{
    int T;
    cin>>T;
    while(T--)
    {
        int b,k;
        cin>>b>>k;
        int sum=0;
        b=b%2;
        int x;
        for(int i=0;i<k-1;i++)
        {
            cin>>x;
            sum+=b*x;
        }
        cin>>x;
        sum+=x;
        if(sum%2) puts("odd");
        else puts("even");
    }
    return 0;
}
